Sunan Abi Dawud 798
سنن أبي داود#798SahihAbu Qatadah said:The apostle of Allah (ﷺ) used to lead us in prayer and recite in the first two rak’ahs of the noon prayers Fatihat al-kitab and two surahs, and he would sometimes recite loud enough for us to hear the verse. He would prolong the first rak’ah of the noon prayer and shorten the second; and he did so in the morning prayer. Abu Dawud said: Musaddad did not mention the words fatihat al-kitab and surah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (762) Sahih Muslim (451)
In-book reference: 2:408